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Finding the Fourth Proportional to 192,418.60, 288,773.70 and 125,836.60

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Solution

The fourth proportional to 192,418.60, 288,773.70 and 125,836.60 is: 188,850.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,418.60 : 288,773.70 = 125,836.60 : x
  2. Step 2: Convert to fraction form
    192,418.60/288,773.70 = 125,836.60/x
  3. Step 3: Cross multiply
    192,418.60x = 288,773.70 × 125,836.60
  4. Step 4: Simplify right side
    192,418.60x = 36,338,300,577.42
  5. Step 5: Solve for x
    x = 36,338,300,577.42/192,418.60
  6. Step 6: Final answer
    x = 188,850.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.